1 Samuel 3:21

And the Lord appeared again in Shiloh In the tabernacle there; he had appeared before to Samuel, when he called him, and declared to him what he designed and resolved to do to Eli and his family, and now appeared again to him in the same place before the battle of the Israelites with the Philistines, of which there is an account in the following chapter. Such appearances had not been usual in Shiloh for a long time, but were now renewed and repeated:

for the Lord revealed himself to Samuel by the Word of the Lord; by Christ, the Word of the Lord, who appeared to him, it is probable, in an human form, as he was wont to do to the patriarchs and prophets, and by whom the Lord revealed his mind and will unto them, being the Angel of his presence, and the messenger of his covenant; or by giving him a word of command to be delivered by him to the children of Israel, and which is expressed and delivered, in the next chapter.